diff --git a/app/models/issue.rb b/app/models/issue.rb
index 1513f76..3a3373f 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -15,10 +15,6 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
-# Additional includes for threadsafe mode activated in Rails 4
-require 'redmine/safe_attributes'
-require 'redmine/utils'
-
 class Issue < ActiveRecord::Base
   include Redmine::SafeAttributes
   include Redmine::Utils::DateCalculation
diff --git a/config/application.rb b/config/application.rb
index 856cc07..58d949a 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -18,16 +18,6 @@ module RedmineApp
     # Custom directories with classes and modules you want to be autoloadable.
     config.autoload_paths += %W(#{config.root}/lib)
 
-    # Earger load code for threadsafe mode
-    config.eager_load_paths += ["#{config.root}/lib"]
-    config.eager_load_paths += ["#{config.root}/plugins"]
-  
-    # Enable threaded mode
-    config.threadsafe!
-  
-    # Allow rake tasks to autoload models in thread safe mode, more info at http://stackoverflow.com/a/4880253
-    config.dependency_loading = true if $rails_rake_task
-
     # Only load the plugins named here, in the order given (default is alphabetical).
     # :all can be used as a placeholder for all plugins not explicitly named.
     # config.plugins = [ :exception_notification, :ssl_requirement, :all ]